# Copyright (c) 2014-present PlatformIO <contact@platformio.org>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os
import sys
from os.path import join
from platform import system
from traceback import format_exc

import click

from platformio import __version__, exception, maintenance
from platformio.util import get_source_dir


class PlatformioCLI(click.MultiCommand):  # pylint: disable=R0904

    def list_commands(self, ctx):
        cmds = []
        for filename in os.listdir(join(get_source_dir(), "commands")):
            if filename.startswith("__init__"):
                continue
            if filename.endswith(".py"):
                cmds.append(filename[:-3])
        cmds.sort()
        return cmds

    def get_command(self, ctx, cmd_name):
        mod = None
        try:
            mod = __import__("platformio.commands." + cmd_name, None, None,
                             ["cli"])
        except ImportError:
            try:
                return self._handle_obsolate_command(cmd_name)
            except AttributeError:
                raise click.UsageError('No such command "%s"' % cmd_name, ctx)
        return mod.cli

    @staticmethod
    def _handle_obsolate_command(name):
        if name == "platforms":
            from platformio.commands import platform
            return platform.cli
        elif name == "serialports":
            from platformio.commands import device
            return device.cli
        raise AttributeError()


@click.command(
    cls=PlatformioCLI,
    context_settings=dict(help_option_names=["-h", "--help"]))
@click.version_option(__version__, prog_name="PlatformIO")
@click.option(
    "--force",
    "-f",
    is_flag=True,
    help="Force to accept any confirmation prompts.")
@click.option("--caller", "-c", help="Caller ID (service).")
@click.pass_context
def cli(ctx, force, caller):
    maintenance.on_platformio_start(ctx, force, caller)


@cli.resultcallback()
@click.pass_context
def process_result(ctx, result, force, caller):  # pylint: disable=W0613
    maintenance.on_platformio_end(ctx, result)


def main():
    try:
        if "cygwin" in system().lower():
            raise exception.CygwinEnvDetected()

        # https://urllib3.readthedocs.org
        # /en/latest/security.html#insecureplatformwarning
        try:
            import urllib3
            urllib3.disable_warnings()
        except (AttributeError, ImportError):
            pass

        # handle PLATFORMIO_FORCE_COLOR
        if str(os.getenv("PLATFORMIO_FORCE_COLOR", "")).lower() == "true":
            try:
                # pylint: disable=protected-access
                click._compat.isatty = lambda stream: True
            except:  # pylint: disable=bare-except
                pass

        cli(None, None, None)
    except Exception as e:  # pylint: disable=W0703
        if not isinstance(e, exception.ReturnErrorCode):
            maintenance.on_platformio_exception(e)
            error_str = "Error: "
            if isinstance(e, exception.PlatformioException):
                error_str += str(e)
            else:
                error_str += format_exc()
                error_str += """
============================================================

An unexpected error occurred. Further steps:

* Verify that you have the latest version of PlatformIO using
  `pip install -U platformio` command

* Try to find answer in FAQ Troubleshooting section
  http://docs.platformio.org/page/faq.html

* Report this problem to the developers
  https://github.com/platformio/platformio-core/issues

============================================================
"""
            click.secho(error_str, fg="red", err=True)
        return int(str(e)) if str(e).isdigit() else 1
    return 0


def debug_gdb_main():
    sys.argv = [sys.argv[0], "debug", "--interface", "gdb"] + sys.argv[1:]
    return main()


if __name__ == "__main__":
    sys.exit(main())